So I was driving along an unfamiliar road today, turned from one road to another and started to accelerate to 30mph, must have reached around 25mph when I suddenly see one of those speed hump types that blend in the road, it disguised itself very well! partly due to sun glare, I tried to break to slow down, must have gone down to somewhere between 18-23mph when I went over and my car jumped (expectedly) and made a loud thud noise, part of it was probably stuff in the boot, but now am worried and slightly paranoid that I might have damaged something.
Didn't hear any noise immediately after or drive back to home apart from one clunk noise when i went over another speed hump, but am likely to have damaged something? Anyone else ever damaged something because of a speed hump?

Didn't hear any noise immediately after or drive back to home apart from one clunk noise when i went over another speed hump, but am likely to have damaged something? Anyone else ever damaged something because of a speed hump?